*{
    margin:0;
    padding:0;
}
body{
    height:100%;
    /* 设置这个可以确保页面在各种设备上都能正确显示，防止视口变化很大 */
}
.container{
    height:100vh;
    background-image: url(../img/signup.jpg);
    background-repeat:no-repeat;
    background-size: cover;
    background-position: center;
    justify-content: center; 
    align-items: center;
    display: flex;
}
.signup{
    background-color: white;
    width: 400px;
    height: 600px;
    border-radius: 15px;
    padding: 0 50px;
    box-shadow: 2px 5px 10px 1px rgb(0,0,0,0.5);
}
.header{
    font-size: 38px;
    font-weight: 700;
    line-height: 150px;
    text-align: center;
}
.importfront{
    display: block;
    width: 100%;
    margin-bottom: 20px;
    border: 0px;
    padding: 10px;
    border-bottom: 1px solid rgb(128, 125, 125);
    font-size: 15px;
    outline: none;
}
.submit{
    text-align: center;
    padding: 16px;
    width: 100%;
    margin-top: 40px;
    background-color: rgb(215, 218, 215);
    border: 0;
    border-bottom: 0px;
    /* 这个没用，复制的时候改成0忘删了 */
    font-size: 18px;
    z-index: 100;
}
.submit:hover{
    font-weight: 700;
}
.login{
    text-align: center;
    line-height: 88px;
}
.login a{
    text-decoration: none; 
    color: #abc1ee;
}